For educational use only. All rights reserved by the contributor(s) and publisher(s).

Audience:

General public

Keywords:

Description:

Epicycloid curves are produced by the rolling of one circle on another circle. In this model the motion of the smaller ‘planet’ gear in transferred to another gear of equal diameter attached to the crank link. When a coupler link is fixed to this transfer gear, the end point generates an exact straight-line motion. The entire motion of planet gear and rotating link are quite fascinating and beautiful to see
If the rolling of the ‘planet’ gear takes place on the missle of a ring gear as in model S-16, a point on the outside of the planet generates hypo cycloid curves and this curve becomes a straight-line when the diameter of the planet is half that of the ring gear.

Descr Author:

Francis Moon

Descr Date:

2004-07-00

Image Metadata

Title:

S18. Epicyloid Straight-Line Linkage

Rights:

Jon Reis/www.jonreis.com. Jon Reis Photography grants Cornell University Libraries, and the Cornell College of Engineering the rights to display copyrighted images of the Reuleaux Collection of Kinematic Mechanisms on the Cornell University and National Science Digital Library web sites and for unlimited use in Cornell University Library publications for education purposes only. Rights for all other uses such as editorial, advertising, web use and display by third parties not affiliated with Cornell University are reserved by the photographer.